12344040220 has 48 divisors (see below), whose sum is σ = 26346565728. Its totient is φ = 4857465600.

The previous prime is 12344040179. The next prime is 12344040227. The reversal of 12344040220 is 2204044321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12344040191 and 12344040200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344040227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297679 + ... + 336601.

It is an arithmetic number, because the mean of its divisors is an integer number (548886786).

Almost surely, 2^12344040220 is an apocalyptic number.

12344040220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12344040220 is an abundant number, since it is smaller than the sum of its proper divisors (14002525508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12344040220 is a wasteful number, since it uses less digits than its factorization.

12344040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39190 (or 39188 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12344040220 its reverse (2204044321), we get a palindrome (14548084541).

The spelling of 12344040220 in words is "twelve billion, three hundred forty-four million, forty thousand, two hundred twenty".